List of Meridians
| Name | Adopted | Initial point | State(s) |
|---|---|---|---|
| Black Hills Meridian | 1878 | 43°59′44″N 104°03′16″W / 43.99556°N 104.05444°W / 43.99556; -104.05444 (Black Hills Meridian) | South Dakota |
| Boise Meridian | 1867 | 43°22′21″N 116°23′35″W / 43.3725°N 116.39306°W / 43.3725; -116.39306 (Boise Meridian) | Idaho |
| Chickasaw Meridian | 1833 | 35°01′58″N 89°14′47″W / 35.03278°N 89.24639°W / 35.03278; -89.24639 (Chickasaw Meridian) | Mississippi |
| Choctaw Meridian | 1821 | 31°52′32″N 90°14′41″W / 31.87556°N 90.24472°W / 31.87556; -90.24472 (Choctaw Meridian) | Mississippi |
| Cimarron Meridian | 1881 | 36°30′05″N 103°00′07″W / 36.50139°N 103.00194°W / 36.50139; -103.00194 (Cimarron Meridian) | Oklahoma |
| Copper River Meridian | 1905 | 61°49′04″N 145°18′37″W / 61.81778°N 145.31028°W / 61.81778; -145.31028 (Copper River Meridian) | Alaska |
| Fairbanks Meridian | 1910 | 64°51′50.048″N 147°38′25.949″W / 64.86390222°N 147.64054139°W / 64.86390222; -147.64054139 (Fairbanks Meridian) | Alaska |
| Fifth Principal Meridian | 1815 | 34°38′45″N 91°03′07″W / 34.64583°N 91.05194°W / 34.64583; -91.05194 (Fifth Principal Meridian) | Arkansas, Iowa, Minnesota, Missouri, North Dakota & South Dakota |
| First Principal Meridian | 1819 | 40°59′22″N 84°48′11″W / 40.98944°N 84.80306°W / 40.98944; -84.80306 (First Principal Meridian) | Ohio & Indiana |
| Fourth Principal Meridian | 1815 | 40°00′50″N 90°27′11″W / 40.01389°N 90.45306°W / 40.01389; -90.45306 (Fourth Principal Meridian) | Illinois |
| Fourth Principal Extended Meridian | 1831 | 42°30′27″N 90°25′37″W / 42.5075°N 90.42694°W / 42.5075; -90.42694 (Fourth Principal Extended Meridian) | Minnesota & Wisconsin |
| Gila and Salt River Meridian | 1865 | 33°22′38″N 112°18′19″W / 33.37722°N 112.30528°W / 33.37722; -112.30528 (Gila and Salt River Meridian) | Arizona |
| Humboldt Meridian | 1853 | 40°25′02″N 124°07′10″W / 40.41722°N 124.11944°W / 40.41722; -124.11944 (Humboldt Meridian) | California |
| Huntsville Meridian | 1807 | 34°59′27″N 86°34′16″W / 34.99083°N 86.57111°W / 34.99083; -86.57111 (Huntsville Meridian) | Alabama & Mississippi |
| Indian Meridian | 1870 | 34°29′32″N 97°14′49″W / 34.49222°N 97.24694°W / 34.49222; -97.24694 (Indian Meridian) | Oklahoma |
| Kateel River Meridian | 1956 | 65°26′16.374″N 158°45′31.014″W / 65.43788167°N 158.758615°W / 65.43788167; -158.758615 (Kateel River Meridian) | Alaska |
| Louisiana Meridian | 1807 | 31°00′31″N 92°24′55″W / 31.00861°N 92.41528°W / 31.00861; -92.41528 (Louisiana Meridian) | Louisiana |
| Michigan Meridian | 1815 | 42°25′28″N 84°21′53″W / 42.42444°N 84.36472°W / 42.42444; -84.36472 (Michigan Meridian) | Michigan & Ohio |
| Mount Diablo Meridian | 1851 | 37°52′54″N 121°54′47″W / 37.88167°N 121.91306°W / 37.88167; -121.91306 (Mount Diablo Meridian) | California & Nevada |
| Navajo Meridian | 1869 | 35°44′56″N 108°31′59″W / 35.74889°N 108.53306°W / 35.74889; -108.53306 (Navajo Meridian) | Arizona |
| New Mexico Principal Meridian | 1855 | 34°15′35″N 106°53′12″W / 34.25972°N 106.88667°W / 34.25972; -106.88667 (New Mexico Principal Meridian) | Colorado & New Mexico |
| Montana Principal Meridian | 1867 | 45°47′13″N 111°39′33″W / 45.78694°N 111.65917°W / 45.78694; -111.65917 (Montana Principal Meridian) | Montana |
| Salt Lake Meridian | 1855 | 40°46′11″N 111°53′27″W / 40.76972°N 111.89083°W / 40.76972; -111.89083 (Salt Lake Meridian) | Utah |
| San Bernardino Meridian | 1852 | 34°07′13″N 116°55′48″W / 34.12028°N 116.93°W / 34.12028; -116.93 (San Bernardino Meridian) | California |
| Second Principal Meridian | 1805 | 38°28′14″N 86°27′21″W / 38.47056°N 86.45583°W / 38.47056; -86.45583 (Second Principal Meridian) | Illinois & Indiana |
| Seward Meridian | 1911 | 60°07′37″N 149°21′26″W / 60.12694°N 149.35722°W / 60.12694; -149.35722 (Seward Meridian) | Alaska |
| Sixth Principal Meridian | 1855 | 40°00′07″N 97°22′08″W / 40.00194°N 97.36889°W / 40.00194; -97.36889 (Sixth Principal Meridian) | Colorado, Kansas, Nebraska, South Dakota & Wyoming |
| Saint Helena Meridian | 1819 | 30°59′56″N 91°09′36″W / 30.99889°N 91.16°W / 30.99889; -91.16 (Saint Helena Meridian) | Louisiana |
| Saint Stephens Meridian | 1805 | 30°59′51″N 88°01′20″W / 30.9975°N 88.02222°W / 30.9975; -88.02222 (Saint Stephens Meridian) | Alabama & Mississippi |
| Tallahassee Meridian | 1824 | 30°26′03″N 84°16′38″W / 30.43417°N 84.27722°W / 30.43417; -84.27722 (Tallahassee Meridian) | Florida & Alabama |
| Third Principal Meridian | 1805 | 38°28′27″N 89°08′54″W / 38.47417°N 89.14833°W / 38.47417; -89.14833 (Third Principal Meridian) | Illinois |
| Uintah Meridian | 1875 | 40°25′59″N 109°56′06″W / 40.43306°N 109.935°W / 40.43306; -109.935 (Unitah Meridian) | Utah |
| Umiat Meridian | 1956 | 69°23′29.654″N 152°00′04.551″W / 69.39157056°N 152.00126417°W / 69.39157056; -152.00126417 (Umiat Meridian) | Alaska |
| Ute Meridian | 1880 | 39°06′23″N 108°31′59″W / 39.10639°N 108.53306°W / 39.10639; -108.53306 (Ute Meridian) | Colorado |
| Washington Meridian | 1803 | 30°59′56″N 91°09′36″W / 30.99889°N 91.16°W / 30.99889; -91.16 (Washington Meridian) | Mississippi |
| Willamette Meridian | 1851 | 45°31′11″N 122°44′34″W / 45.51972°N 122.74278°W / 45.51972; -122.74278 (Willamette Meridian) | Oregon & Washington |
| Wind River Meridian | 1875 | 43°00′41″N 108°48′49″W / 43.01139°N 108.81361°W / 43.01139; -108.81361 (Wind River Meridian) | Wyoming |
Based on the BLM manual's 1973 publication date, and the reference to Clarke's Spheroid of 1866 in section 2-82, the coordinates listed are believed to be in the NAD27 datum.
Read more about this topic: Public Land Survey System
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